Which of the Following Conditions Must Be Satisfied for a Person

Multiple Choice

Which of the following conditions must be satisfied for a person to testify as an expert witness? Select all that apply.

A) The expert's testimony must be relevant to some material fact.
B) The expert witness must have both educational and professional (career) experience in the subject matter about which s/he will testify.
C) The expert must be qualified in the subject matter about which s/he will testify.
D) The expert witness must have testified in a similar case before without incident.